Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact. With the right people and the right ideas, there's no limit to what we can achieve.
Sounds awesome, right? Now, let's make sure you're a good fit for the role:
Key Responsibilities Key Responsibilities Platform Development: Develop and enhance core translation services and backend applications using Java and Spring Boot.
Optimization & Evaluation: Support direct integrations with translation providers; continually evaluate and improve translation quality, system scalability, cost efficiency, and latency.
API & Event Pipelines: Build highly available, reliable REST APIs and Kafka-driven asynchronous pipelines for processing high-volume content and translation tasks.
Operational Excellence: Implement end-to-end monitoring, logging, error handling, retries, automated testing, and validation mechanisms for complex translation workflows.
Scale & Performance: Drive performance tuning and architecture enhancements to handle increasing translation volumes seamlessly.
Production Support: Assist with production deployments, CI/CD pipelines, system monitoring, and troubleshooting to ensure platform stability.
Cross-Functional Collaboration: Partner with cross-functional engineering teams,



product managers, and key stakeholders on technical design, system architecture, code reviews, and documentation.
Global Expansion: Contribute to the long-term evolution of the platform to support international expansion, additional languages, and diverse content formats across major media brands (including WSJ and international outlets).
Qualifications & Skills Required: Core Backend: Proven expertise in Java and Spring Boot for building scalable RESTful APIs and enterprise microservices.
Cloud & Infrastructure: Hands-on experience with Google Cloud Platform (GCP) or other major public cloud environments.
Event-Driven Architecture: Experience with Apache Kafka or similar messaging systems for event-driven architectures and streaming pipelines.
Software Engineering Practices: Proficiency with Git, CI/CD pipelines, automated testing (unit, integration, e2e), code reviews, and Agile methodologies.
Communication: Excellent technical communication skills with fluency in written and spoken English.
Preferred / Nice to Have: Prior experience building or maintaining content management platforms (CMS) , digital publishing systems, or media workflows.
Experience evaluating LLM prompt engineering, fine-tuning, or MT quality estimation metrics (e.g., BLEU, COMET).
What we offer: Commitment to Professional Development
Adaptable and Collaborative Culture
Total Rewards
*Specific benefits are determined by the employment type and location.*

📌 Senior Java Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona